CIFS: Map SMB2 status codes to POSIX errors
Add mapping table for 32 bit SMB2 status codes to linux errors. Note that SMB2 does not use DOS/OS2 errors (ever) so mapping to DOS/OS2 errors as a common network subset (as we do for cifs) doesn't help. And note that the set of status codes is much more complete here. Signed-off-by: Steve French <sfrench@us.ibm.com> Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
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@ -16,4 +16,4 @@ cifs-$(CONFIG_CIFS_DFS_UPCALL) += dns_resolve.o cifs_dfs_ref.o
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cifs-$(CONFIG_CIFS_FSCACHE) += fscache.o cache.o
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cifs-$(CONFIG_CIFS_SMB2) += smb2ops.o
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cifs-$(CONFIG_CIFS_SMB2) += smb2ops.o smb2maperror.o
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@ -0,0 +1,56 @@
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/*
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* fs/cifs/smb2pdu.h
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*
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* Copyright (c) International Business Machines Corp., 2009, 2010
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* Etersoft, 2012
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* Author(s): Steve French (sfrench@us.ibm.com)
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* Pavel Shilovsky (pshilovsky@samba.org) 2012
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _SMB2PDU_H
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#define _SMB2PDU_H
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#include <net/sock.h>
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/*
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* SMB2 Header Definition
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*
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* "MBZ" : Must be Zero
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* "BB" : BugBug, Something to check/review/analyze later
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* "PDU" : "Protocol Data Unit" (ie a network "frame")
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*
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*/
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struct smb2_hdr {
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__be32 smb2_buf_length; /* big endian on wire */
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/* length is only two or three bytes - with
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one or two byte type preceding it that MBZ */
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__u8 ProtocolId[4]; /* 0xFE 'S' 'M' 'B' */
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__le16 StructureSize; /* 64 */
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__le16 CreditCharge; /* MBZ */
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__le32 Status; /* Error from server */
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__le16 Command;
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__le16 CreditRequest; /* CreditResponse */
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__le32 Flags;
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__le32 NextCommand;
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__u64 MessageId; /* opaque - so can stay little endian */
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__le32 ProcessId;
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__u32 TreeId; /* opaque - so do not make little endian */
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__u64 SessionId; /* opaque - so do not make little endian */
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__u8 Signature[16];
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} __packed;
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#endif /* _SMB2PDU_H */
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@ -0,0 +1,37 @@
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/*
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* fs/cifs/smb2proto.h
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*
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* Copyright (c) International Business Machines Corp., 2002, 2011
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* Etersoft, 2012
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* Author(s): Steve French (sfrench@us.ibm.com)
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* Pavel Shilovsky (pshilovsky@samba.org) 2012
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _SMB2PROTO_H
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#define _SMB2PROTO_H
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#include <linux/nls.h>
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#include <linux/key-type.h>
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struct statfs;
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/*
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*****************************************************************
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* All Prototypes
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*****************************************************************
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*/
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extern int map_smb2_to_linux_error(char *buf, bool log_err);
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#endif /* _SMB2PROTO_H */
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